Wire recessing



Feb. 19, 1929. 1,702,304

C. J. KOTCHI WIRE RECESSING, FILLING, AND STRAIGHTENING MACHINE Filed Oct. 31, 1927 4 Shee t 1 Feb. 19, 1929.

C. J. KOTCHI WIRE RECESSING, FILLING,

AND STRAIGHTBNING MACHINE I Y V 111 4 Sheets-Sheet 2 Filed ON. 31 192'? Febkl9, 1929.

C. J. KOTCHI WIRE RBCESSING, FILLING, AND STRAIGHTENING MACHINE 4 Sheets-Sheet Filed Oct. 31. 1927 rl ll' l lllllllllllll l I Feb. 19, 1929.

c J. KOTCHL WIRE RECESSING, FILLING, AND STRAIGHTENING IACHIUI Filed Oct. 31, 1927 4 Sheets-$13 4 Patented Feb. 19, 1929.

UNITED STATES PATENT oerea.

CHARLES J. KOTCHI, OF CHICAGO, ILLINOIS, ASSIGNOR TO KORO CORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

WIRE RECESSING, FILLING, AND STRAIGHTENING Application filed October 31, 1927. Serial No. 229,851.

This invention relates to improvements in machines for manufacturing rods for welding purposes, and in which rod is incorporated a flux so that as the rod is used and consumed flux in predetermined quantities will be automatically supplied to the work,

the rod and fiux'dropping off in the form of pellets, whereby a continuous operation may be performed and the necessity of stopping n the work or withdrawing the rod from the puddle to supply a quantity of flux will be obviated.

One of the objects of the present invention is to provide a machine of this character by means of the. use of which a con tinuous operation will be performed on the rod, and the rod will be indented or recessed, filled, to be eventually straightened and cut off into predetermined lengths as the rod is passing through the machine.

A further object is to provide improved means for supplying the flux to the rod and for packing the flux in the cavities or recesses in the rod.

To the attainment of these ends and the accomplishment of other new and useful objects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several parts hereinafter more full desrribml and clain'ieil and shown in the accompanying drawings illust-rating this invention, and in whi -hlligure l is a vertical longitudinal sectional view of a machine of this character constructed in accordance with the principles of this invention Figure 2 a top plan view of Figure 1..

Figure 33 is a right hand end elevation of Figure 1.

F igure 4 is an enlarged detail vertical sectional view taken on line 44, Figure 1,

Figure 5 is a vertical sectional view taken on line Figure 2.

Figure 6 is a sectional view taken on line (3(3, Figure 5.

Figure 7 is a view taken on line 77, Figure 8, with parts broken away and parts in section.

Figure 8 is a view taken on line 88, Fig ure 7.

Figure 9 is an enlarged detail sectional view of a port on of the knurling wheels and showing the manner in which the rod is knurled and supported.

F1gure10 is a detail sectionalview taken porting knurlingfjwheels 16 -171 These wheels are respectively provided witlr s'pac'ed teeth 1819 and between whichwheels the rod or material 20" is passed. hewh'eels 1617 are disposed one above' the other. One of the wheels, preferably the upper wheel, rotates-freely and the lower wheel 17 is preferably driven through the-medium of intermeshinp; gears 2122,on e of which is connected with the wheel 17 and the other to an upright shaft ,3;, the shaft '23'beingjournaled'in a suitable bearing 24. The shaft 23 is driven by suitable intermeshing 'gears' 25L6, the gear 26 being: connected to a shaft 27 which is journaled in suitable bearings in. The shaft 27 driven from a shaft 27 on which a gear 27? is secured for rotation therewith and this gear 27 meshes with a gear 27" which in turn is secured to the shaft 7. The shaft 27 is jo'urnaled in suitable bearings 27"27 The shaft 2" is driven by means of a gear 29 which meshes with a gear 30, the latter being connected with a shaft 31 that is driven from a motor 32 preferably mounted upon abase 33, the shaft 31 being journaled in suitable bearings 34:35.

A guide 36 is provided in alinement with the bite of the indenting or recessing wheels 1G17 and through which guide 36 the wire or rod 20 passes. Another guide 37 arranged on opposite sides of the wheels16l7 and the forward extremity of the guide 37 extends for a considerable distance into the erid39 of the guide 3 bite of the wheels 16-17 as at 38 (see particularly Figure 9) so as to support the rod or work 20 as it emerges from the bite of the wheels 16l7 and at a point in close proximity totheayheels, o ,1 v

The .g'hid 8 'ziskfinp ed iii anysui a e manner and may be of any desired length. The other end 39 of the guide 37 projets ih to preferably above thdLiEi'fio'rIllKbffiihhdi another PPQ TL t the eby. a burner. 9e heater 42 whiclr reciveslts supply'of fuel surface 51 of the cavity in the end of the guide 48 serves as a means for compacting and pressing the flux into the cavities 52, thereby insuring that the cavities will be filled.

,ekrranged adjacent the support 15 is a standard rimm: 53 ha ing spaced bearings 54; a ,t t h e top thereof in which a straightening head 55 is rotatably mounted by journaling the-"ends' fiti o'f thehead'in' the bearings 54. The straightener 55-"and the ends 56 are pro v eiwlthanapsn ag th r tlu'o s in ent with'the'bpening-of the guide 48 so that through a pipe 43, may hezdisposed beneath as,tl e,vvire lezrves the guide 48 it will pass into the tank 40 so as to kep'the contents of'the enkuerm ell is sr s d with an paced inheritin -tanks s 3 iq l-i iaw'sal s vgf m i .tanks, a dsth'c pr iett i ie ghh ofthe the innermost tank 40, suitable packing'46 beingiprovidedto form a, tightjo nt, I

stimul ted {O ls jello; I

" winner the tankj'M;uitah1e packing material, 49v lieingqqrovided. to for u;i.a fluid tight j st- ;t em e re s y Figure 11) of theguide dfiprojects into the tank40 and terrninatesln close proximity to the extremit 33.oi.tlieguide 37, but terminates short t er'efrorn so as'to'pe'rmit the flux n the eeh rm ta ast flw e se between the extremit es 39. a nd 50 of there spective guides .37 and 4 8 the ifod or o 20 s it P s hregg thefiapksto a The end 50 otthegui e 43 vwithin the tank lOis concaved or recess edyasiatt 1, the wallsof he c s -car fir cq v r ii tem the e. e i y 5 pf-the i ide we sad o a d the diametric center thereof. a

As the rod-or work 20 passes between the rolls l6 and 17 the teeth 18 and 19 co-operating Avilloperate upon the rod to torn: cavities therein, and these cavities are formed by an extruding process, the teeth 18 and 19 being so shaped and arranged as to provide cavities which are out of conununication with each other.

\Vith this method of producing the cavities in the rod the portion of the material of" the rod between adjacent cavities will be com pressed or crystalized with the result that during the consumption of the rod in use, the arc will form a crater or cavity in the end of therod, withthe further result that the spit and sputter usually present when welding rods are used, will be obviated.

Further, this construction of rod renders it possible to more readily control the arc and enable the operator to localize the same.

As the rod witlrthe cavities or. recesses 52 therein passes outof the guide 37', through the tank 40 and into the guide -18 the flux 47in the tank 40 will enter the cavities 52 in-the rod. The rod as it advances will cause the flux to advance Witlrit and't lfi. inclined or tapered the opening in the head 55. oppositely disposed pairs ofscrews 57 are adjust-ably mountegliir the straightener 55 and theproxilnateextremities'of adjacent screws 57 are arranged in alinement and contactuith the rod or work-20 fonstraightening the rod as it passes through the straightener 55. These screws 57 may be ustedas desired and the ends-of the screws also serve as a means for removing or scraping from the rod 20 any ex- The straightener 55 is axially rotated preferably from the shaft 31 through the medium of a pulley 58 secured with the shaft 31 for rotation therewithanda pulley 5,) secured to the srtaightener .55, a belt 60 passing over the pulleys 5 8,and 59.

Supported preierably .by the standard or frame 53 and rotatable upon vertical axes are feeding rollers 6162. The rollers are providedflrespectively with grooves (S3(i t in their peripheries and the rod or work 20 passing into the bite of these rollers will enter the grooves 63 and 64, the rollers (51 and (S2 frictionally binding upon the \vorkor rod and operating to draw or feed the same forwardly.

.The rollers 6l G2 .are respectively mounted in adjustable bearings (35-(3G \\'il\"l'4.i2' 'f they'niay be adjusted to compensate varying diameters of the work.

The roller 62 rotates frceijv while the roller (31' is preferably positively driven. To that end the shaft (37 of the. roller (i3 is mounted in a ball bearing (38 and secured to the sha it (37 is a gear (it). Mounted upon a shaft T i.- gear 71 which meshes with the gear (it) and the gear 71 adapted to be rm-i adjusted upon the shaft in a direction lengthwise of the axis of the shaft, in any suitable nuinner, preferably by means of a pin or key 72 which slides in a keyway 73 in the shaft- ?(F. An adjusting screw 74 provided with an adjusting head 75 and a. lock nut 76 is provided and is retatably supported in suitable bearings. Carried by the screw 74: is a collar '77 having; a projection 78 which enters a groove 79 in the hub of the gear 71.

By adjusting the screw-f4 the gear U may be adjusted lengthwise of the shaft 70 so that another gear of different diameter may be substituted for the gear (39. The roller 61 is adjustable by means of a screw 80 and the Inn gear 62 is adjustable by means of a screw 81.

Motionis imparted to the shaft by means of a gear 82 secured thereto which meshes with a gear 83 secured to a shaft 8 1 that is journaled insnitable bearings 85-86. Connected also with the shaft 84 for rotation therewith is a gear 87 that meshes with a gear 88, 'which in turn is secured to the shaft 27 for rotation therewith.

Thus it will be seen that the indenting or recessing rolls 16 and 17, the straightener head 55 and the feeding rolls 61 will all be operated from the shafts 37 and 31 and in unison.

As the rod or work passes from between the rolls 61 and 62 it will pass through a cutter member 89 with which a cutter 90 mounted upon a lever 91 co-operates for severing the wire or rod into predetermined lengths, andwhen severed the lengths may drop upon a suitable support as indicated at 92. The cutting element 90 is adjustable upon the end of the lever 91 by means of suitable adjusting means 93 and the lever is pivotally mounted intermediate its ends as at 94 upon the franie or standard 53.-\The cutting element 89 is removably .held in position by means of a fastening device95.

Loosely mounted upon the shaft 27= is a cam element 96 and the end 97 of the lever 91 is disposed adjacent the path of movement of the cam 96. The extremity 97 of the lever is preferably deflected as at 98 and an antifriction roller 99 is journaled upon the deflected portion to be engaged by the cam 96 under predetermined conditions to rock the lever 97 in one direction and thereby effect a severing of the rod or work into predetermined lengths, the lever 91 being returned preferably by means of a suitable spring 97% and against the stress of which spring the cam 96 rocks the lever.

Connected also with the shaft 27 is a clutch member 100 provided with a recess 101 opening through one face thereof to receive a pin 102, which latter is carried with the cam member 96 and for free movement laterally with respect thereto. The pin 102 is provided with a flange 103, and a spring 10 1 tends normally to project the end of the pin 102 beyond the cam member 96 so as to enter the recess 101 and thereby lock the cam member 96 through the medium of the. clutch member 100 with the shaft 27" for rotation therewith. A vertical movable pin or member 105 is mounted to slide loosely in a guide 106 and this pin or member 105 is adapted at a predetermined time in the cycle of operation of the machine, to assume a position to be engaged by the cam shaped flange 103 (see Figure 7) to withdraw the pin 102 from the clutch member 100 and thereby release the cam member 96 with respect to the shaft 27*. When this operation is effected the lever 91 will remain idle.

A support 107 is pivotallyniounted as at 108 adjacent'the earn member 96. The support is provided with a slot 109 in which a bearing 110 carrying a gear 111 is adjustably mounted. This gear 111 meshes with a gear 112 carried by the shaft 27*. Carried by the gear 111 is an arm 113 which is adapted to engage a shoulder 114 on a member 115 that is secured to the member or pin 105 so that when the gear 111 is rotated under predetermined conditions the arm 113 will engage the projection 114: that is connected with the pin 105 to raise the latter out of engagement with the flange 103 of the pin 102 thereby allowing the spring 104 to project the pin 102 into the recess 101 for locking the cam 96 for rotation with the shaft 27 to rock the lever 91.

As soon as the arm 113 passes out of engagement with the shoulder 114 on the member 105, the latter will drop and a beveled surface 116 (see Figure 7) on the member 105 will engage the beveled surface on the flange 103 and thereby withdraw the pin 102 from the recess 101 in the clutch member 100, thereby unlocking the cam with respect to the shaft 27 The oscillation of the lever 91 in this manner will sever the rod 20 intopredetermined lengths and the lengths of the portions severed are governed by the diameter of the gear 101. 1

By removing the gear 111 and substituting therefor another gear of a different diameter a different length portion will be severed from the rod. The interchanging of gears may be readily effected as the slot 109 in the support 107 will permit gears of different diameters to be supported thereby and by swinging the support 107 about its pivot 108 through the medium of the handle 117 the varying sizes in the interchanged gears 111 may be compensated.

The support 107 may be held in its adjusted position by means of a suitable fastening device 118 passing through a slot 119 and engaging a suitable support.

Connected with the cam member 96 is a brake wheel 120 with which a hand brake 121 co-operates to prevent overthrow of the parts.

If desired a fly or balance wheel 122 may be connected with the clutch member 100.

Suitable scrapers 123 (see Figure 2) may be provided, if desired. for maintaining the peripheries of the wheels 61 and 62 free from fluxing material.

W'ith this improved construction it will be manifest that there will be provided a. continuous operation and when the rod is inserted in one end of the machine it will, through its course through the machine, be knurled to produce the desired cavities. the

cavities filled with flux and the flux compacted therein. and the wires or rod straightened and the excess flux scraped therefrom and finally the rod will be severed into section of predetermined lengths.

While the preferred form of the invention has been herein shown and'described, it is to be understood that .various-changes may hemadejin. the details of construction and-in the combination and arrangement of the several parts within the scope of the claims,

without departing from'the spirit of this. invention.,'

What is claimed as new is 1.v A machine for manufacturing flux carryingwelding rods embodying oppose-d indenting or reccssing rolls between which the work passesto form cavities therein'and compress the material ofthe rod between 0pposite cavities, a flux containing tank through which the recessed rod passes to receive flux in said cavities,.,n1eans for-straightening the rods, and means for continuously;advancing the rod throughthe machine.

. 12. A machine z for inanufacturingflux carrying ei-ding -i'ods embodying 1gp posed indenting or-.rec essing rolls between; which he n i k pas cs te m cavi iesztherein-a d compress the material oi the rod bet/{Ween -adjacent cavities, a flux containing tanltthroughwhich the recessed,- rodpasses to receive flux in said cavities meang for strai htening the reds, aw-ans- ;f r-z wn 'muQuy I a a c ng h ed: lw u-ghthe mac ne, an -.m aa wp rating automatically to sever the Silld mdfi'ilk n; Said cavi es m ans-f r i t ing rods. means .f or. continuously advancingthe rod through the niac-liine,;.1neansoperatingone -ha a t a.pr detsrm i dtim the cycle of operation. of; the machinefor sever? mg the .rods into predetermined lengtl-is, and means whereby such time of operation of; the sa i d: seve sing, means n ay be. varied 4-. A machine for inanut'actuizing flux carrying welding rods embodying means for forming separated cavities in the rod and cmnpressing the material of the rod between adjacent cavities, means f0: applying flux Within the cavities, and means for continuously advancing the rod with respect to=the cavity forming and the flux applying means.

5. A machine for manufacturing flux carrying welding rods embodying means for forming cavities in the rod and-compressing the material of the rod between adjacent cavities means for applying flux within the cavities. means. for continuously advancing the rodwith respect.to--the cavity forming andthe flux applying means. and means operating automaticaily .to sever the rod into predetermined lengths as the rod is advanced.

6. A machine for manufacturing flux carrying welding rods embodying means for manu ac u ing fl x th m ria Q fithe rod-b t een dforming cavitiesi-n the rod :and compressing the material of the-rodzbetween adjacent cavities means for applying-fluxwithin the cavities-means for compacting the flux within the cavities, and means'for continuously advanc mg the rod with respectto: the cavity forming and the'fiux applying means. w l 7. A machine formanufacturing fluxcarrying welding rods cmbodyiiigmeansifor forming cavities in the rod and compressing the material of the rodbet'ween adjacent cavities, a flux containing receptacle through which the rod passes whereby flax Wilt be supplied. into. the cavitieshmezms formemoving .surplusafluxtherefroin; .a'n'd means :for continuously advaneingthe' rod with iespect; to. the cavity donning: anohthe fiuxhpplying means. i r1" f s:

8. A- machine. foi"-=manufactin'ing ffi'LLK- carrying" \veidingi rods embodying gmeanszfor forming. open. *cavities in the rodiza-ncl icom pressing the? material-0f :the and between adjacent cavities;- a :fluxvconliainer' through which therodpas'ses wherebyrflutcwilt hessupe. plied to. the:saidxcavities; iiieaiis withinthe container for compacting-. the .i'fiux in the cavities, and means for contiinaonsly'adyaiic ing theirod'througlntl-le -111ifl.'(tl1iIl;; 2 9. ,A machine: {for "-:inaimiactnring.din: ca rrying welding; rods embodying imem s lioz: forming opcnicavities inthe mid and mm pressing; themateri ahozfithe; rod 'be'tmecniad jacent :cavities,- I fa :flmr ,oontaimerwthrongh which the: rod. passes:Whereby:-flux ivi'lrlbe: supplied to. the-said cavities, means with iii-the container forcompactingtheeflux in=the cavi. ties, means for ;cont'imioiisl-y advancingthe rod through-the machine, and means operating automatically; stoisever the rods .qin' to predetermined'length's. r -1- 1i 10. A machine for manufacturing? flux" carrying welding rods embodying means for forming cavities inthe rod. and. compressingthe material of the rod between-adjacentcavities. a-flux container through which tlierod passes ,wherebyzfl-ux will be supplied tothc cavit-i es. means fonadvaneing therod through the machine. means for-?automatically severing the rod into predeterminedlengths, and means common to alloftheaforesaidlncams for actuating them.

111. A machine for manufacturing fluxv carrying weldingrods embodying means for forming cavities-in the rod. a flu-x containing receptacle, and. guides for the rod extending into the receptacle in alinementand'terminating short of each other-Within'the receptacle whereby the fiuxwill enter the said-cavities between the said ends of the guides, the end. of one of said guides being shaped. as a, means for forcing the flux into and compacting; it in. said cavities as the-rod advances.

12. A machinefor manufacturing fiux' carrying welding'rods embodying means for forming cavities in the rod, a. flux: containing receptacle, and guides for the rod extending into the receptacle in alinement and terminat= ing short of each other within the receptacle whereby the flux will enter the said cavities between the said ends of the guides, one of said guides having a cavity opening through the end thereof and through which cavity the rod passes, the last said cavity tapering from the said extremity of the guide in a direction toward the opposite end of the guide and operating to force the flux into the cavities in the rod and compact the flux therein.

13. A machine for manufacturing flux carrying welding rods embodying means for forming cavities in the rod, :1. flux holding container through which therod is passed to fill the cavities with flux and means for advancing the rod, the last said means embodying rollers having opposed co-operating channels encompassing their peripheries for receiving and gripping the rod, one of said rollers being mounted for free rotation, and means for positively rotating the other roller.

14. A machine for manufacturing flux carrying welding rods embodying means for forming cavities in the rod, a flux holding container through which the rod is passed to fill the cavities with flux and means for advancing the rod, the last said means embodying rollers having opposed co-operating channels encompassing their peripheries for receiving and gripping the rod, one of said rollers being mounted for free rotation, means for positively rotating the other roller, and means mounting each of the rollers for adjustment toward and away from each other.

15. A machine for manufacturing flux carrying welding rods embodying means for forming cavities in the rod, a flux holding container through which the rod is passed to fill the cavities with flux and means for advancing the rod, the last said means embodying rollers having opposed co-operating channels encompassing their peripheries for receiving and gripping the rod. one of said rollers being mounted for free rotation, means for positively rotating the other roller. means mounting each of the rollers for adjustment towards and away from each other. and additional means for adjusting the positively driven roller toward and away from the other roller.

16. A machine for mmmfacturing flux carrying welding rods embodying means for forming cavitiesin the rods,a-tlux holdingcontainer through which the rod is passed whereby flux will be deposited in the cavities, means for straightening the rod, means for continuously advancing the rod, the last said means embodying gripping rollers between which the rod passes, and scrapers for removing flux from the peripheries of said rollers.

17. A machine for manufacturing flux car rying rods embodying means for forming cavities in the rod isolated from each other, and a flux container through which the rod thus formed is passed, whereby the fiux will enter the cavities as the rod is passed therethrough.

18. A machine for manufacturing flux carrying rods embodying means for forming cavities in the rod isolated from each other, a flux container through which the rod thus formed is passed, and means for forcing the flux into said cavities and compacting the same therein during the passage of the rod through the container.

19. A machine for manufacturing flux carrying rods embodying means for forming cavities in the rod isolated from each other, a flux container through which the rod thus formed is passed, whereby the flux will enter the cavities as the rod is passed therethrough, and means for removing excess flux from the rod.

20. A machine for manufacturing flux carrying rods embodying means for forming cavities in the rod isolated from each other, a flux container through which the rod thus formed is passed, means for forcing the flux into said cavities and compacting the same therein during the passage of the rod through the container, and means for scraping excess flux from the rod.

21. Means for manufacturing flux carrying rods embodying a flux container, in combination with a rod having open recesses therein, the said rod being passed through the container, whereby flux will enter and fill said cavities.

22. Means for manufacturing flux carrying rods embodying a flux container, in combination with a rod having open recesses therein, the said rod being passed through the container, whereby flux will enter and fill said cavities, and means for packing the flux in said cavities.

23. Means for manufacturing flux carrying rods embodying a flux container, in combination with a rod having open recesses therein, the said rod being passed through the container, whereby flux will enter and till said cavities, and means for packing the flux in said cavities while the rod is passing through said container.

24. Means for manufacturing flux carrying rods embodying a flux container, a rod having open cavities therein and adapted to be passed through the container, and a guide through which the rod moves in its passage through the container, a portion of the guide forming an open recess decreasing in size from one end towards the other for receiving and forcing flux into the cavities in the rod as the rod moves through said recess.

In testimony whereof I have signed my name to this specification, on this 6th day of October, A. D. 1927.

CHARLES J KOTCHI. 

